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संबंधित प्रश्न
Work done by a boy depends on the time in which he does work.
The moon is revolving around the earth in a circular path. How much work is done by the moon?
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
A machine raises a load of 750 N through a height of 16 m in 5 s. calculate:
- energy spent by machine,
- power at which the machine works.
Fill in the blank with suitable word :
1 joule is the work done when a force of 1 __________ moves an object through a distance of one __________ in the direction of __________.
The work done by a force acting obliquely is given by the formula : W = F cos θ ✕ s. What will happen to the work done if angle θ between the direction of force and motion of the body is increased gradually? Will it increase, decrease or remain constant.
Each of the following statement describes a force acting. Which force is causing work to be done?
Complete the following sentences:
The SI unit of work is ....... and of power is .......
A weight lifted a load of 200 kgf to a height of 2.5 m in 5 s. calculate: (i) the work done, and (ii) the power developed by him. Take g= 10 N kg-1.
